D-cysteine + H₂O $rightleftharpoons$ sulfide + NH₃ + pyruvate

Thus, the two substrates of this enzyme are D-cysteine and H₂O, whereas its 3 products are sulfide, NH₃, and pyruvate.

This enzyme belongs to the family of lyases, specifically the class of carbon-sulfur lyases. The systematic name of this enzyme class is D-cysteine sulfide-lyase (deaminating; pyruvate-forming). Other names in common use include D-cysteine lyase, and D-cysteine sulfide-lyase (deaminating). This enzyme participates in cysteine metabolism.

References

• Nagasawa T, Ishii T, Kumagai H, Yamada H "D-Cysteine desulfhydrase of Escherichia coli. Purification and characterization". Eur. J. Biochem. 153 541–51.
• Schmidt A "A cysteine desulfhydrase from spinach leaves specific for D-cysteine". Z. Pflanzenphysiol. 107 301–312.
• Schmidt A and Erdle I "A cysteine desulfhydrase specific for D-cysteine from the green-alga Chlorella fusca". Z. Naturforsch. C: Biosci. 38 428–435.

External links

The CAS registry number for this enzyme class is .

Gene Ontology (GO) codes